supernaculum

Etymology
Sham Latin, intended to mean upon the nail.

Adverb

 * 1)  According to the rules of an old drinking game in which the drinker upturned the empty cup and had to drink more if the remaining droplets spilled beyond the edge of his fingernail.
 * 2) To the last drop, to the bottom.

Noun

 * 1)  Excellent wine that one would wish to drink to the last drop.